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Articles 14101 - 14130 of 15024
Full-Text Articles in Entire DC Network
Cardiovascular Disease Risk Factors In Women Working In A Tobacco Plant, Bahatti̇n Adam, Abdulkeri̇m Bedi̇r, Cumhur Kilinç, Şennur Arslan, Muhli̇se Alvur
Cardiovascular Disease Risk Factors In Women Working In A Tobacco Plant, Bahatti̇n Adam, Abdulkeri̇m Bedi̇r, Cumhur Kilinç, Şennur Arslan, Muhli̇se Alvur
Turkish Journal of Medical Sciences
To estimate the effect of exposure to tobacco dust on lipid parameters that increase the incidence of cardiovascular disease (CVD), 70 female workers were selected from the tobacco processing section of a tobacco plant, and 55 women were selected from the administration selection as the controls. The subjects were homogeneous in terms of primary and secondary risk factors such as age, alcohol intake, menstrual status, physical activity, diet, familial hyperlipidemia and heart disease. They were divided into two subgroups, smokers and nonsmokers. Venous blood and morning urine samples were simultaneously taken from workers after a 12-14 h period without food …
Osteopoikilosis: Report Of A Familial Case, Ercan Tunç, Serpi̇l Savaş
Osteopoikilosis: Report Of A Familial Case, Ercan Tunç, Serpi̇l Savaş
Turkish Journal of Medical Sciences
No abstract provided.
Strength Of Individual Soil Aggregates Against Crushing Forces Ii. Influence Of Selected Soil Properties, Taşkin Öztaş, Mustafa Y. Canbolat, Koray Sönmez
Strength Of Individual Soil Aggregates Against Crushing Forces Ii. Influence Of Selected Soil Properties, Taşkin Öztaş, Mustafa Y. Canbolat, Koray Sönmez
Turkish Journal of Agriculture and Forestry
The objective of this study was to determine the influence of selected soil properties on the relative strength of individual oil aggregates against crushing forces. Soil aggregates were crushed between a flat surface and a flat plate connected to a pocket penetrometer. Significant relationships were found between dry-aggregate stability and the clay content, sand content, CEC and ESP of the soils studied. There was also a significant positive correlation between dry-aggregate stability and wet-aggregate stability (r=0.94**). No significant relationships were found between dry-aggregate stability and silt content, organic matter content, CaCO 3 content or pH. Stepwise multiple regression analysis indicated …
Effect Of The Environmental Temperature On The Degradation Period Of Carbaryl, Ahmet Uyanik, Mustafa Özdemi̇r
Effect Of The Environmental Temperature On The Degradation Period Of Carbaryl, Ahmet Uyanik, Mustafa Özdemi̇r
Turkish Journal of Agriculture and Forestry
In this study, the effect of the temperature on the degradation period of Carbaryl (Sevin), a widely used outdoor and indoor insecticide, was investigated in a laboratory in soil and on green plants by using a new quantitative TLC (Thin Layer Chromatography) method. The experimental temperature conditions were 40°C , 16°C and 5°C for soil and 15°C for green plants. The results which were evaluated by photocopying of the TLC spots on a graph paper and square counting showed that carbaryl degradation is a first order reaction and the temperature dependent half-life of the degradation takes grater than four weeks …
Comparing Tillage Techniques By Using A New Infiltration Methodfatih Topaloğlu, Fati̇h Topaloğlu
Comparing Tillage Techniques By Using A New Infiltration Methodfatih Topaloğlu, Fati̇h Topaloğlu
Turkish Journal of Agriculture and Forestry
A one-year field trial in Italy was carried out for comparing tillage systems such as 50 cm chiselling (CH), 40 cm plow-till (PT40) and 20 cm plow-till (PT20) according to results of a new developed infiltration method. Ponded infiltration rates were measured to obtain the field saturated hydraulic conductivity (K fs ) using single ring infiltrometers on six dates with six replications in three sites on a sandy clayey loam soil. In both PT20 and CH plots, K fs after tillage increased temporarily to a value of about 4 and 9 times greater than that observed before tillage, respectively. However, …
The Cleavage Strength Of Calabrian Pine (Pinus Brutia Ten.) Woods Growing Naturally In Different Ecological Regions Of Turkey, İbrahi̇m Bektaş, Ahmet Tutuş
The Cleavage Strength Of Calabrian Pine (Pinus Brutia Ten.) Woods Growing Naturally In Different Ecological Regions Of Turkey, İbrahi̇m Bektaş, Ahmet Tutuş
Turkish Journal of Agriculture and Forestry
In this study, the test trees were taken from natural growth sites that calabrian pine grows optimally had been used as research material. The main aim of study is to determine cleavage strengh variation to find in different growing regions. Test trees of 20 in number were collected from 5 different regions (Suçatı - Kahramanmaraş, Edremit - Balıkesir, Kemalpaşa - İzmir, Yılanlı- Muğla, Melli (Bucak) - Burdur). Test samples were prepared from stem part of trees between at a hight of 2 and 4 meters. The effect of factors growing region on the cleavage strengh of trees was tested by …
A Comparative Study Of Physicochemical And Organoleptic Qualities Of Flavoured Yogurts Made From Cow's And Goat's Milk And Stored For 15 Days, Serdar Akin, Ati̇lla Konar
A Comparative Study Of Physicochemical And Organoleptic Qualities Of Flavoured Yogurts Made From Cow's And Goat's Milk And Stored For 15 Days, Serdar Akin, Ati̇lla Konar
Turkish Journal of Agriculture and Forestry
The effects of 2 different types of milk (cow's and goat's milk), 4 types of flavouring (coffee, strawberry, cherry and peach) and 15 days of storage on the physical, chemical and organoleptic qualities of flavoured yogurts were investigated and the results summarised below. The results of the analysis indicate that different types of milk and flavouring had statistically significant effects (p
Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇
Determination Of The Alkalinity Of Tokat-Kazova Soils, Kadi̇r Saltali, M. Rifat Deri̇ci̇
Turkish Journal of Agriculture and Forestry
This research was conducted in order to determine the alkalinity of soils in Kazova and the Kg values which are an indicator of alkalinity. Twenty-four soil profiles were studied for this purpose. None of these profiles exhibited any alkalinity problem for 0-15 cm soil depths (except profile A_3). However, 3 profiles exhibited an alkalinity problem for 15-30 cm, 12 profiles for 30-60 cm, 11 profiles for 60-90 cm, and 6 profiles for 90-120 cm depths. The ESP values calculated for 30-60 cm were highest, followed by those for 60-90, 90-120, 15-30, 0-15 cm in decreasing order. The Gapon Coefficient (Kg), …
Effect Of Some Preservation Chemicals On The Density Of Scoth Pine And Oriental Beech Woods, Yalçin Örs, Musa Atar, Hüseyi̇n Peker
Effect Of Some Preservation Chemicals On The Density Of Scoth Pine And Oriental Beech Woods, Yalçin Örs, Musa Atar, Hüseyi̇n Peker
Turkish Journal of Agriculture and Forestry
This study was designed to determine the effect of impregnation with some chemicals on the density of wooden materials. For this reason, experimentals were prepared from Scotch pine and Oriental beech woods and impregnated with polyethylene glycole (PEG-400), ammonium per sulphate (AS), vacsol (V), and also water-repellent (WR), such as stryne, methylemetacrylate and isocynate according to ASTM-D 1413-76 It was found that, after impragnation process oriental beech wood dried in air was the most dense material when ıt is individually used with styrene and MMA, whereas Scotch pine wood was the most dense when it is used with water-repellent (WR) …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Experimental Determination Of \Beta And \Gamma Critical Exponents In The Sol-Gel Phase Transition By Using Steady-State Fluorescence Technique, Y. Yilmaz, Ö. Pekcan
Experimental Determination Of \Beta And \Gamma Critical Exponents In The Sol-Gel Phase Transition By Using Steady-State Fluorescence Technique, Y. Yilmaz, Ö. Pekcan
Turkish Journal of Physics
The gelation of methyl methacrylate and ethylene glycol dimethacrylate was studied using the steady-state fluorescence technique. Samples with various crosslinker densities were prepared and sol-gel phase transitions were observed at various temperatures. Percolation theory was employed to interpret the results. For all samples the gel fraction and the average cluster size exponents, \beta and \gamma, were measured and found to be around 0.42 and 1.7 respectively. These values show excellent agreement with theoretical and simulation results.
Studies On Extremal Segments In Random Sequences, Deniz Ertaş, Yacov Kantor
Studies On Extremal Segments In Random Sequences, Deniz Ertaş, Yacov Kantor
Turkish Journal of Physics
We review our main findings on the size distribution of the largest neutral segments in a sequence of N randomly charged monomers. Upon mapping to one--dimensional random walks (RWs), this corresponds to finding the probability distribution for the size L of the largest segment that returns to its starting position in an N--step RW. Using analytical, exact enumeration, and Monte Carlo methods, we reveal the complex structure of the probability distribution in the large N limit. In particular, the size of the longest neutral segment has a distribution with a square-root singularity at \ell\equiv L/N = 1, an essential singularity …
Orbital Period Modulation In Chromospherically Active Close Binaries, Cafer İbanoğlu
Orbital Period Modulation In Chromospherically Active Close Binaries, Cafer İbanoğlu
Turkish Journal of Physics
The orbital period changes in some chromospherically active close binaries have been interpreted as a consequence of magnetic activity. At least in two active close binaries a possible relationship between the orbital period modulation and activity cycle was suggested. The existence of a third companion in these binaries has also been proposed. The light-time effect which arises from orbiting around a third-body has been subtracted from all the O-C values and a cyclic change of the orbital period has been obtained. These cyclic changes seem to be connected with the total brightness variations at least in two samples, namely, V471 …
Cover And Contents
Turkish Journal of Veterinary & Animal Sciences
No abstract provided.
Focal Dermal Hypoplasia (Goltz Syndrome) In Amale Infant, Hülya Bi̇lgen, Eren Özek, Cengi̇z Canpolat, Oya Gürbüz, Müyesser Tuncer
Focal Dermal Hypoplasia (Goltz Syndrome) In Amale Infant, Hülya Bi̇lgen, Eren Özek, Cengi̇z Canpolat, Oya Gürbüz, Müyesser Tuncer
Turkish Journal of Medical Sciences
No abstract provided.
Natural Terrestrial Electromagnetic Fields Of Extremely Low Frequencies And Detection Of Periodic Gravitational Radiation, L. V. Grunskaya, D. V. Vinogradov
Natural Terrestrial Electromagnetic Fields Of Extremely Low Frequencies And Detection Of Periodic Gravitational Radiation, L. V. Grunskaya, D. V. Vinogradov
Turkish Journal of Physics
The present research is connected with nontraditional ways of detecting periodic gravitational radiation. Some records of extremely low frequency variations of electromagnetic fields of Earth with extracting periodicities are realized corresponding to the source of gravitational radiation of geophysical and astrophysical origin.
On The Global Stabilization Of Nonlinear Systems Via Switching Manifolds, Stephen P. Banks, Meti̇n U. Salamci, M. Kemal Özgören
On The Global Stabilization Of Nonlinear Systems Via Switching Manifolds, Stephen P. Banks, Meti̇n U. Salamci, M. Kemal Özgören
Turkish Journal of Electrical Engineering and Computer Sciences
The global stabilization of nonlinear systems is investigated by using switching surfaces. The nonlinear system is forced to a lower order switching manifold, which is designed to be stable by construction. Thus, the stability of the reduced-order system is guaranteed and parameter selection for the switching surface is avoided. The method is extended to a class of uncertain nonlinear systems and exemplified with some fictitious dynamic models.
A Simple Formula Obtained Using Tabu Search Algorithm For The Radiation Efficiency Of A Resonant Rectangular Microstrip Antenna, Dervi̇ş Karaboğa, Keri̇m Güney
A Simple Formula Obtained Using Tabu Search Algorithm For The Radiation Efficiency Of A Resonant Rectangular Microstrip Antenna, Dervi̇ş Karaboğa, Keri̇m Güney
Turkish Journal of Electrical Engineering and Computer Sciences
A new simple formula for the radiation efficiency of a resonant rectangular microstrip patch antenna is presented. The formula is obtained by using a tabu search algorithm, which is a quite new optimization technique based on the principles of intelligent problem solving. The formula is valid for substrates with relative permittivities between 1 and 12.8 and for the complete range of thicknesses normally used. The results obtained by using this new simple formula are in conformity with those reported elsewhere. The formula can also be used in the calculation of the radiation efficiency of dipoles.
Effects Of Parasitic Elements On Oscillation Frequency Of Ota-C Sinusoidal Oscillators, Ari̇f Nacaroğlu, Ergun Erçelebi̇
Effects Of Parasitic Elements On Oscillation Frequency Of Ota-C Sinusoidal Oscillators, Ari̇f Nacaroğlu, Ergun Erçelebi̇
Turkish Journal of Electrical Engineering and Computer Sciences
An oscillator circuit which incorporates Operational Transconductance Amplifiers is presented. The circuit is designed using three OTAs and two grounded capacitors. The frequency of oscillation is tunable over a wide frequency range. The effects of the parasitic elements on the oscillation frequency and the oscillation condition are studied. The theoretical results are compared with the experimental results for a practical oscillator circuit.
Cover And Contents
Turkish Journal of Electrical Engineering and Computer Sciences
No abstract provided.
Criteria Of Le Page Type In Involutive Banach Algebras, Abdellah El Kinani, Mohamed Oudadess
Criteria Of Le Page Type In Involutive Banach Algebras, Abdellah El Kinani, Mohamed Oudadess
Turkish Journal of Mathematics
The Le Page inequality in Banach algebras is \parallel xy \parallel\leq\alpha\parallel yx\parallel. We consider inequalities where a linear involution appears and has consequences on the involution itself and commutativity results.^1
Modular Symmetry Classes Of Tensors, M. Shahryari, M. A. Shahabi
Modular Symmetry Classes Of Tensors, M. Shahryari, M. A. Shahabi
Turkish Journal of Mathematics
We introduce the notion of modular symmetry classes of tensors and give a necessary and sufficient condition for a modular symmetry class of tensors associated with the full symmetric group to be non-zero. Then we use modular symmetry classes of tensors to study the polynomial representations of $GL(V)$, where $V$ is a vector space over a field of characterisitic $p$. At the end we introduce a non-degenerate bilinear form on a modular symmetry class. Some problems are also given.
Problem Identification And Priority Setting In Agricultural Research: The Case Of The Eastern Margin Of Central Anatolia, Vedat Uzunlu, Ahmet Bayaner, Surendra P. S. Beniwal
Problem Identification And Priority Setting In Agricultural Research: The Case Of The Eastern Margin Of Central Anatolia, Vedat Uzunlu, Ahmet Bayaner, Surendra P. S. Beniwal
Turkish Journal of Agriculture and Forestry
Since the resources available to research institutes are scarce, and experimentation is the most costly phase of a research program, researchers must make sure that the possible solutions to identified problems have a high chance of success. Consequently, problems should be carefully prioritized for experimentation. Factors limiting increased productivity in crop production in the Eastern Margin of Central Anatolia (EMCA) along with agro-ecological factors, apart from political concern, are agronomic constraints. Limiting factors in livestock production are insufficient feed supply, poor conditions of natural grazing areas, and housing of animals. Increasing the adoption rate of the recommended production practices among …
Frequency And Distribution Of Risk Factors Forcoronary Heart Disease In The Adult Populationof Rural District Of Elazığ, Turkey, Yasemi̇n Açik, R. Erol Sezer, Hafi̇ze Sezer
Frequency And Distribution Of Risk Factors Forcoronary Heart Disease In The Adult Populationof Rural District Of Elazığ, Turkey, Yasemi̇n Açik, R. Erol Sezer, Hafi̇ze Sezer
Turkish Journal of Medical Sciences
Objectives: This study was performed to determine the frequency and distribution of risk factors for coronary heart disease in people living in the Baskil district of Elazığ. Methods: From a population of 905 individuals aged 35 years and over, 388 were randomly selected. Selection of subjects was done with official records of the Baskil Health Care Center. Although repeated invitations were made, 32 individuals (29 men and 3 women) did not participate. Thus, 356 subjects were enrolled. Blood cholesterol and blood pressure levels, body height and weight were measured in all study subjects. In addition, a questionnaire was applied. Results: …
Autosomal Dominant Osteopetrosis Type Ii, Kazim Şenel, Si̇nan Sönmez, Lale Cerrahoğlu, Mahi̇r Uğur, Selami̇ Suma
Autosomal Dominant Osteopetrosis Type Ii, Kazim Şenel, Si̇nan Sönmez, Lale Cerrahoğlu, Mahi̇r Uğur, Selami̇ Suma
Turkish Journal of Medical Sciences
No abstract provided.
Neonatal Cerebral Candida Abscess: Radiologic And Clinical Findings, Ömer Cevi̇t, Hulusi̇ Eği̇lmez, Hayri̇ B. Toksoy, Di̇lara İçağasioğlu, Turan Sarikaya, İdri̇s Sütçü
Neonatal Cerebral Candida Abscess: Radiologic And Clinical Findings, Ömer Cevi̇t, Hulusi̇ Eği̇lmez, Hayri̇ B. Toksoy, Di̇lara İçağasioğlu, Turan Sarikaya, İdri̇s Sütçü
Turkish Journal of Medical Sciences
No abstract provided.